31 = 3-4k
31-3 = -4k
28 = -4k
Divide both sides of the equation by -4 to find the value of k:
k = -7
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X2 = k Take square root each side. X = (+/-) sqrt(k) ============
q=4k+4uImproved Answer:-If: Q = 4k+4uThen: k = (4u-Q)/-4
ASSs a. c. 8 b. 7 d. 12
K = 6
neg(-k) + neg(-k) = k + k = 2k = 4